National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

71°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 30.00 in (1014.2 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 16 Jun 6:51 am CDT
Extended Forecast for

San Antonio TXSimilar City Names

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 95. Heat index values as high as 103. Light southeast wind becoming south southeast 5 to 10 mph in the morning.

    High: 95 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. Heat index values as high as 103. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southeast wind 5 to 10 mph.

    High: 92 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 89 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 95. Heat index values as high as 103. Light southeast wind becoming south southeast 5 to 10 mph in the morning.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. South wind 5 to 10 mph.
Tuesday
Sunny, with a high near 96. Heat index values as high as 103. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 95. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 76. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Juneteenth
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 74.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Saturday Night
Mostly cloudy, with a low around 74.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TXSimilar City Names
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
6:42 am CDT Jun 16, 2025
Forecast Valid:
7am CDT Jun 16, 2025-6pm CDT Jun 22, 2025
 
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